#!/bin/sh

# Slackware build script for meshlab

# Copyright 2013 David Spencer, Baildon, West Yorkshire, U.K.
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PRGNAM=meshlab
VERSION=${VERSION:-1.3.3}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}

SRCNAM=MeshLabSrc_AllInc
SRCVER=$(echo $VERSION | sed 's/\.//g')

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
mkdir $PRGNAM-$VERSION
cd $PRGNAM-$VERSION
tar xvf $CWD/${SRCNAM}_v${SRCVER}.tgz
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# see http://sourceforge.net/p/meshlab/bugs/342/
patch -p1 < $CWD/plystuff.diff
# fix silly lapack error in ancient levmar (thanks to net147 over at Arch)
patch -p1 -d meshlab < $CWD/lapack.patch
# use external mpir -- meshlab ships x86_64 static libs, but no src or libs for i486
sed -i -e '/mpir/d' meshlab/src/meshlabplugins/filter_csg/filter_csg.pro

# Build all the dependencies. These will be statically linked into meshlab.
# (Horrible duplication and many out of date, but avoids version clashes)
cd meshlab/src/external
qmake -recursive external.pro
make \
  CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS"

# Build meshlab
cd ..
qmake -recursive meshlab_full.pro
make \
  CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS -fpermissive"

mkdir -p $PKG/opt
cp -a distrib/ $PKG/opt/meshlab

mkdir -p $PKG/usr/bin
ln -s \
  /opt/meshlab/{meshlab,meshlabserver} \
  $PKG/usr/bin

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/share/pixmaps
cp \
  $CWD/meshlab_{32x32,48x48}.xpm \
  $PKG/usr/share/pixmaps

mkdir -p $PKG/usr/share/applications
cp \
  $CWD/meshlab.desktop \
  $PKG/usr/share/applications

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  README.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
